<%@ page language="java" contentType="text/html; charset=UTF-8"
		 pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
	<title>请先登录</title>
	<style>
        /* 全局样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .card {
            background: #ffffff;
            padding: 60px 80px;
            border-radius: 10px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
            text-align: center;
            max-width: 450px;
        }

        h1 {
            font-size: 28px;
            color: #333333;
            margin-bottom: 20px;
            font-weight: 500;
        }

        .icon {
            font-size: 60px;
            color: #ff6b6b;
            margin-bottom: 20px;
        }

        a {
            display: inline-block;
            margin-top: 30px;
            padding: 12px 30px;
            background: #4a90e2;
            color: #ffffff;
            text-decoration: none;
            border-radius: 30px;
            font-size: 16px;
            transition: background 0.3s ease;
        }

        a:hover {
            background: #357abd;
        }
	</style>
</head>
<body>
<div class="card">
	<div class="icon">&#128274;</div> <!-- 锁图标 -->
	<h1>请登录后再访问该页面！</h1>
	<a href="login.jsp">返回登录</a>
</div>
</body>
</html>